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BQ76PL536PAPR-BQ76PL536PAPT
Lithium-Ion Battery Monitor and Secondary Protection IC for Electric and Hybrid Electric Vehicle 64-HTQFP
bq76PL536
www.ti.com SLUSA08A –DECEMBER 2009–REVISED JULY 2010
to6 Series Cell Lithium-Ion Battery Monitor and Secondary Protection IC for EV and
HEV Applications
Checkfor Samples: bq76PL536
1FEATURES APPLICATIONS Uninterruptible Power Systems (UPS) 3to6 Series Cell Support, All Chemistries E-Bike and E-Scooter• Hot-Pluggable Large-Format Battery Systems• High-Speed SPI for Data Communications Electric and Hybrid Electric Vehicles• Stackable Vertical Interface No Isolation Components Required Between DESCRIPTIONICsThe bq76PL536isa stackable threeto six series cell
• Industrial Temperature Range, –40°Cto 85°C lithium-ion battery pack protector and analog front
• High-Accuracy Analog-to-Digital Converter end (AFE) that incorporates a precision
(ADC): analog-to-digital converter (ADC); independent cell
voltage and temperature protection; cell balancing,
– ±3 mV Typical accuracyanda precision 5-V regulatorto power user circuitry.
– 14-Bit Resolution,6-µs Conversion TimeThe bq76PL536 integratesa voltage translation and
– Nine ADC Inputs:6 Cell Voltages,1 Six-Cell precision analog-to-digital converter system to
Brick Voltage,2 Temperatures,1 measure battery cell voltages with high accuracy and
General-Purpose Input speed.
– Dedicated Pins for SynchronizingThe bq76PL536 provides full protection (secondary
Measurements protection) for overvoltage, undervoltage, and
• Configuration Data Storedin ECC-OTP overtemperature conditions. When safety thresholds
Registers are exceeded, the bq76PL536 sets the FAULT
Built-In Comparators (Secondary Protector) output. No external components are needed to
for: configureor enable the protection features.
Over- and Undervoltage Protection Cell voltage and temperature protection functions are
independent of the ADC system. Programmable
– Overtemperature Protectionprotection thresholds and detection delay times are
– Programmable Thresholds and Delay Times storedin Error Check/Correct (ECC) OTP EPROM,
– Dedicated Fault Output Signals for OV, UV, which increases the flexibility and reliabilityof the battery management system.
With Safety The bq76PL536is intendedto be used witha host controllerto maximize the functionalityof the battery
Set by External management system. However, the protectiona host controller. The bq76PL536 can be stacked verticallyto monitor up to 192 cells additional isolation
components between high-speed peripheral interface (SPI) bq76PL536 to reliable
LDO througha high-voltage cell stack.
